On this board an excellent (ahem) old line dating the evolution of escutcheon plates on RMKs included pictures and a discussion of a 3-5 knife with "WDR 4" etched on the ricosso. It was a special presentation knife in a rosewood box so perhaps "WDR #" represented a special occasion, significant event, or customer. I tend to think that is the case…but no one replied identifiying the significance of the "WDR" etching.
You can find the original escutcheon dating line on this board at this link
(the line is worth reviewing for those interested in dating early RMK)…
http://www.knifenetwork.com/forum/sh...ad.php?t=64433
Here is the story of this WDR 4 knife as listed in the ebay offering … it was pretty precisely dated as likely 1962-1963 vintage with a rare Johnson brown button sheath, no model or length numbers..
http://svalbardrepublic.org/ebay/randall-boxed0910.htm
Here are the pictures.. separate from the story…