Keys with the letter R ?

I've been dealing in Victorian since 1976. Bought this piece and 4 keys with R work the doors and drawers. Hoping someone can identify the maker, Thanks Kent Dixon

I will try to answer my own inquiry. I believe the maker could be Robert Renwick, 92 N. Howard St., Baltimore, MD.  Some bank receipts found in a drawer are from Baltimore. Family was prominent in Maryland horse sports. What do you think, Roux?  Kent Dixon

I think the Renwick attribution is a reasonable one considering your proximity to Baltimore (assuming you bought it in the area) and the receipts.  I haven't seen enough Ren Revival Roux, though he was active in the period.  I don't think we'll ever be sure.  It would be nice to find some known Renwick pieces from that time period to compare.