This morning I saw the album of your flash bulb collection for the first time in my life. For collectors, this is the most valuable piece of work I have ever seen. In my collection there are between 15 and 20 bulb types (European as well as American ones), which could be added to your album. Some of these items can be seen on my photostream on FlickR: http://www.flickr.com/photos/corneliusknap/.
Please let me know in case you are interested.
Sincerely, Cornelius Knap Breukelen The Netherlands