Two Railroad Lock Logos can not ID.. Help!

[dg39]

Picked up two RR locks the other day, but I can not find the ID on either one. Have looked at several Lock lists. Nothing.

First one looks like a oTo The second reads D.M. & Co or (C2) Any ideas?
Thanks!
DG

 

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[PBK]

The first mark appears to be a Victorian crown as struck on some locks of British manufacture from the mid 19th century up to 1901.


The second mark is that of the lock manufacturer, Davenport, Mallory & Company of New Haven, CT, c. 1852-57 and c. 1861-64. (The firm was Davenport, Mallory & Lockwood in 1858-60.)

Technically, these are not railroad locks unless there are railroad reporting marks (initials) struck or embossed on them.

 

[dg39]

Duh, I did not think to look at manufacturers.. Went to RR first. Thanks. I am getting senile.