Funny:
I owned two A. Henry underlever hammerless .450 BPE's. My brother was visiting his son in Edinburgh and stopped in. They were only too happy to accommodate my request as he had them on the phone while I was on the other end. He spent over an hour with them researching my numbers and they took many photos of the ledger entries as well as the shop. It was an older gentleman who brought the books up. They thought it was neat to open the books and look. They were really friendly and I did obtain the names of the owners, photos of the ledgers and dates of manufacture. I researched the names and was able to locate the family of one of the original owners. I researched the other one and it was fascinating to look at the history of these rifles.

Dutch