With the generous support of its members, the BWS organises an annual maintenance of Wittgenstein's ledgerstone. Objects left by visitors are stored with the stonemason in the chapel workshop. Some earlier history relating to the BWS maintenance project can be found here.
The BWS also organises the maintenance of the nearby Anscombe and Geach stone. We thank the Collegium Institute at the University of Pennsylvania for their generous support.
The BWS wishes to express its thanks to Gregg Kaniak for his invaluable assistance.
2023
BEFORE ANNUAL MAINTENANCE APRIL, 2023
AFTER ANNUAL MAINTENANCE APRIL 2023
Anscombe and Geach Stone before Annual Maintenance, April 2023
Anscombe and Geach Stone AFTER Annual Maintenance, April 2023
2022
BEFORE ANNUAL MAINTENANCE APRIL, 2022
AFTER ANNUAL MAINTENANCE APRIL, 2022
Anscombe and Geach Stone before Annual Maintenance, April 2022
Anscombe and Geach Stone after Annual Maintenance, April 2021
2021
BEFORE ANNUAL MAINTENANCE APRIL, 2021
AFTER ANNUAL MAINTENANCE APRIL, 2021
Anscombe and Geach Stone before Annual Maintenance, April 2021
Anscombe and Geach Stone after Annual Maintenance, April 2021
2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
2019
BEFORE ANNUAL MAINTENANCE APRIL, 2019
AFTER ANNUAL MAINTENANCE: APRIL, 2019
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2019
Anscombe and Geach Stone after Annual Maintenance, April 2019
The two stones in context
Photo credits: Greg Kaniak
2018
BEFORE ANNUAL MAINTENANCE: APRIL, 2018
After ANNUAL MAINTENANCE: APRIL, 2018
Photo credits: Greg Kaniak
This year, the BWS, with the permission of the family, combined the annual maintenance of Wittgenstein's ledgerstone with the of the nearby stone for Anscombe and Geach
Anscombe and Geach Stone BEFORE ANNUAL MAINTENANCE: APRIL, 2018
ANSCOMBE AND GEACH Stone After ANNUAL MAINTENANCE: APRIL, 2018
2017
Before Annual Maintenance: April, 2017
After Annual Maintenance: May, 2017
2016

Before Annual Maintenance: April, 2016

After Annual Maintenance: April, 2016
Photo credit: Eric Marland
AFTER ANNUAL MAINTENANCE APRIL, 2022
2021
BEFORE ANNUAL MAINTENANCE APRIL, 2021
AFTER ANNUAL MAINTENANCE APRIL, 2021
Anscombe and Geach Stone before Annual Maintenance, April 2021
Anscombe and Geach Stone after Annual Maintenance, April 2021
2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
2019
BEFORE ANNUAL MAINTENANCE APRIL, 2019
AFTER ANNUAL MAINTENANCE: APRIL, 2019
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2019
Anscombe and Geach Stone after Annual Maintenance, April 2019
The two stones in context
Photo credits: Greg Kaniak
2018
BEFORE ANNUAL MAINTENANCE: APRIL, 2018
After ANNUAL MAINTENANCE: APRIL, 2018
Photo credits: Greg Kaniak
This year, the BWS, with the permission of the family, combined the annual maintenance of Wittgenstein's ledgerstone with the of the nearby stone for Anscombe and Geach
Anscombe and Geach Stone BEFORE ANNUAL MAINTENANCE: APRIL, 2018
ANSCOMBE AND GEACH Stone After ANNUAL MAINTENANCE: APRIL, 2018
2017
Before Annual Maintenance: April, 2017
After Annual Maintenance: May, 2017
2016

Before Annual Maintenance: April, 2016

After Annual Maintenance: April, 2016
Photo credit: Eric Marland
2022
BEFORE ANNUAL MAINTENANCE APRIL, 2022
AFTER ANNUAL MAINTENANCE APRIL, 2022
Anscombe and Geach Stone before Annual Maintenance, April 2022
Anscombe and Geach Stone after Annual Maintenance, April 2021
2021
BEFORE ANNUAL MAINTENANCE APRIL, 2021
AFTER ANNUAL MAINTENANCE APRIL, 2021
Anscombe and Geach Stone before Annual Maintenance, April 2021
Anscombe and Geach Stone after Annual Maintenance, April 2021
2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
2019
BEFORE ANNUAL MAINTENANCE APRIL, 2019
AFTER ANNUAL MAINTENANCE: APRIL, 2019
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2019
Anscombe and Geach Stone after Annual Maintenance, April 2019
The two stones in context
Photo credits: Greg Kaniak
2018
BEFORE ANNUAL MAINTENANCE: APRIL, 2018
After ANNUAL MAINTENANCE: APRIL, 2018
Photo credits: Greg Kaniak
This year, the BWS, with the permission of the family, combined the annual maintenance of Wittgenstein's ledgerstone with the of the nearby stone for Anscombe and Geach
Anscombe and Geach Stone BEFORE ANNUAL MAINTENANCE: APRIL, 2018
ANSCOMBE AND GEACH Stone After ANNUAL MAINTENANCE: APRIL, 2018
2017
Before Annual Maintenance: April, 2017
After Annual Maintenance: May, 2017
2016

Before Annual Maintenance: April, 2016

After Annual Maintenance: April, 2016
Photo credit: Eric Marland
AFTER ANNUAL MAINTENANCE APRIL, 2022
2021
BEFORE ANNUAL MAINTENANCE APRIL, 2021
AFTER ANNUAL MAINTENANCE APRIL, 2021
Anscombe and Geach Stone before Annual Maintenance, April 2021
Anscombe and Geach Stone after Annual Maintenance, April 2021
2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
AFTER ANNUAL MAINTENANCE: APRIL, 2020
2019
BEFORE ANNUAL MAINTENANCE APRIL, 2019
AFTER ANNUAL MAINTENANCE: APRIL, 2019
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2020
Anscombe and Geach Stone before Annual Maintenance, April 2019
Anscombe and Geach Stone after Annual Maintenance, April 2019
The two stones in context
Photo credits: Greg Kaniak
2018
BEFORE ANNUAL MAINTENANCE: APRIL, 2018
After ANNUAL MAINTENANCE: APRIL, 2018
Photo credits: Greg Kaniak
This year, the BWS, with the permission of the family, combined the annual maintenance of Wittgenstein's ledgerstone with the of the nearby stone for Anscombe and Geach
Anscombe and Geach Stone BEFORE ANNUAL MAINTENANCE: APRIL, 2018
ANSCOMBE AND GEACH Stone After ANNUAL MAINTENANCE: APRIL, 2018
2017
Before Annual Maintenance: April, 2017
After Annual Maintenance: May, 2017
2016

Before Annual Maintenance: April, 2016

After Annual Maintenance: April, 2016
Photo credit: Eric Marland