I have a 14"L x 4"D x 2"H wooden two-tier device with a welded-wire front with queen-excluder spacing. There are three 3/4" holes between the two tiers. Two of these holes are covered with wire-screen cones with 1-bee entrances. The cones prevent exit from the closable top tier. The third hole has a sliding metal cover. The bottom of the device is metal with two and a half 1.25" horseshoe-shaped holes offset toward the back and one end. There is a metal "wing" with small holes presumably for nails on each side of the device.
Online there was a virtually identical device that was labeled a queen introducer from about 1930. I have no other info. This device was in the supplies of a very old beekeeper.
Any insight you can give as to how it would have been used is very much appreciated. Here is a link to photobucket pics: http://s431.photobucket.com/user/kat...=recent&page=1
Thanks! Kalispell Kathy from Montana