[Sca-librarians] Help! Seeking for a patron

[JC Sandstrom]

A patron here in El Paso is looking for "Companies in
England that sell/print reprints (facsimilies?) of
medieval manuscripts dealing with indulgences, first
published before 1500.

I am at a bit of a loss on this one.  I somehow doubt
if there was a complete book published about
indugences before 1500.  

Could we all bend our collectively knowledge towards
this for a few minutes?  Any help will be greatly
appreciated.

YIS

John C. Sandstrom
El Paso Public Library

Known in the SCA as

Sheik Omar Mohammud Mirzazadeh
Outlands