Hi Tom, that is my worry as the V R gives it a timespan of 1837-1901. The brass keyhole cover leads me to 1840 or later based on info from A Guide to Artifacts of Colonial American by Ivor Noel Hume. Is the particular form factor of this lock significant? It is very similar in style to smokehouse locks, which despite their name were likely used for other purposes as well I am guessing.
Zooming in heavily on the uncompressed photographs I took shows a few minor pits under the V R on the lock. Given the angle of wear cutting across the crown on the left side and on the V perhaps something may have been underneath at one point. The difference between the V and the R is quite dramatic and can also be seen in the loop at the bottom of the crown where the lower left corner has been completely worn away.
I’m very interested in any input anyone may have. While I would love any extra details for this particular paper I am more interested in working this in to my thesis if I can nail down a small list of potential manufacturers to further investigate. Abraham Thompson seems to have some models very similar to this particular lock, did different manufacturers have models of similar make during the nineteenth century?
Again thank you to everyone, I greatly appreciate your time!