Tower Doors to Roof, Mysterious Old Handmade Copper Key Fob with Blackened Yale Keys plaid 3 3/4" x 3 13/16"

3 3/4" x 3 13/16" and in good condition

the "Broomfield" scrawled at the bottom I believe refers to the location of the drawing- a hamlet in Wiltshire

Uneven long edges as evident with a few clean tears coming in from the edges and a bit of loss along old fold line as documented

A couple of rough spots to the wood on the top and one knot along one side

Tower Doors to Roof, Mysterious Old Handmade Copper Key Fob with Blackened Yale Keys plaid 3 3/4" x 3 13/16"Seems perhaps the tower with doors #12&13 to roof which these keys opened went up in flames; the face of this fob was clearly cleaned since, but the the back of it and the keys themselves are completely blackened. Which lends added drama to visions of tower doors! I haven't been able to nail down the G. W Co. in question, but the manner of the type, and of the fob itself, and the Yale & Towne keys on it, say c. early 20th century to me. Found in