The 161 Mobile Anti-Aircraft Unit, which was available between 1939 and 1941, contained the 161a, Lorry with Searchlight and 161b, the Anti-Aircraft Gun on Trailer.
In this post I am only concerned with the Anti-Aircraft Gun on Trailer because I believe I have a version which has not been recorded before. I have looked through various references including the posts on the TalkModelToys site, Jacques Dujardin's Dinky Toys CD and various other references but have not found any mention of it.
Going back to 1991 I bought a boxed set of the 161 Anti-Aircraft Unit (see photo 1) from a well known London auction house. The date on the box is 11-39 (November 1939). Unfortunately, when it arrived both pieces had been damaged in the post due to inadequate packing. I was able to recover the cost of the item through insurance however. I then set about trying to attach some of the pieces that had come loose. The gun on the trailer had become loose from the trailer and when I looked at it I found that there was a round hole in the middle and that there should have been a bar across the middle of the hole to which the gun would be attached so that it could swivel but this was missing. Not having any other example of this trailer to compare with, I fitted a bar, (see photos 2,3 & 4) though you will see that it is not quite accurate in the next photos. It should have a semi-circular shape around the middle where the gun is fixed.
It has only been recently that I have seen two complete versions of this same trailer which have the same hole and original bar across the middle (see photos 8,10). Unfortunately I was not able to find out if there was a date for them.
My theory about this version of the gun trailer is that it is the first production version and that it was found that the bar across the open circle was not strong enough to hold the gun when played with. A change was then made and the open circle was filled in. Compare these with the other version which has a solid circle in the middle of the trailer to which the gun is fixed (see photo 6).
However I would be interested to see what ideas other members have about this version and look forward to your comments