Here is the response from G&H:
I reviewed your photos with Paul Chapman who is the VP and Director of Gunsmithing for G&H and has been with the company for about 30 years. Although, as I previously mentioned, there are no existing shop records dating to the period of the custom work on your rifle, we feel that the work is typical of the G&H work at that time. Specifically, the scope mount has been applied in a manner that is typical of the G&H shop, with blind pins and screws. Also, the stock is a G&H pattern although several other custom gunmakers used similar stocks, including Wundhammer, Adolph, and Hoffman. The bolt knob has a single panel checkering that is typical of G&H. The PG cap looks like G&H. The buttplate is a G&H model. They were made in Germany but hand checkered and engraved by G&H. The horn forend tip is typical of G&H as is the Lyman aperture sight. If G&H had marked the rifle, it would like appear in the form of a legend on the top of the barrel between the front and rear sights. The buttplate is nicely engraved – is there any other engraving on the rifle, such as the magazine floorplate or the pistol grip cap? Is there a G&H legend on top of the barrel?
We are not certain at what point the letter suffix may have been added to the serial number but we feel that it was done by Winchester. I reviewed the Von Lengerke & Detmold and the Abercrombie & Fitch records for Winchester rifles sold between 1926 and 1931 and of all of the Model 54’s sold (probably about 75), only 5 of those had a letter ‘A’ at the end of the number. They are 23806A, 23923A, 25513A, 25568A, and 25708A. There were numbers higher, lower and in between these numbers that did not have the letter recorded. There was nothing in the description to suggest the meaning of the letter. You might check with the Cody Museum since they have the Winchester records.
I hope that this helps a bit. Although we can say nothing definite, the work is certainly “in the style of the G&H shop”.
Regards,
Robert C. Beach
Records Research
Griffin & Howe, Inc
33 Claremont Road
Bernardsville, NJ 07960
908-766-2287