Unusual Penny Pack?

[nvmos2]

Here is a standard Daval Penny Pack. They are pretty common; every Trade Stimulator collector has one or more of them.

However, the back door on this one has a Daval logo cast into it. I'm wondering how unusual that is; most of them have a smooth area on the right side of the back door with no logo.

I have 4 Penny Packs and only one has the logo. My collection indicates that about 25% had the logo, but I suspect it is much lower since this is the only one I've seen (or noticed anyway) with the logo.

How many of you Penny Pack (or other Daval machines for that matter) owners out there have this logo on the back door?

[cpdretired]

http://www.ibuyoldslots.com/TradeStimul ... istory.htm
I have seen a few since I had the price list up. As far as how many have the Daval logo on the back I have no idea.
Ron