Jeff,
The grenade pictured in the last 6 images of your latest post is a No.1 percussion type Lancaster hand grenade. It was one of many privately developed types submitted during WWI to the War Dept. for testing. The cord was was wrapped around the wrist of the throwing arm and the time fuse ignited as the grenade left the thrower. There was also a No.2 type with a pipe handle that fired on impact. Both used the same body with extra internal lobes for additional fragmentation visible in your last image.
I don't think I've ever seen one in person but have seen photographic evidence of both types surviving in various private and museum collections. The one you pictured is easily the best one I've seen and is probably one of the official examples submitted for testing. Lancaster Engineering Corp. was a New York City company and the drawings I have of these grenades are dated June and July of 1917. Will try to get them scanned and posted in the next day or two.
I have the second type that is impact fired. I'm pretty sure I posted the photos on here once before.
Bonnex, you have no more room in yer PM box.
Mark
Do you know what was in the mission pack Norman at the bottom of the picture ????? Dave
This is not one of the museum photos, but a piece that I picked up at a show yesterday. It has the appearance of a US MKI / MKII frag body, with a smooth neck and a base cast as part of the body. The neck does not come quite as high as it might, and is a larger diameter. It is otherwise fairly normal, with no markings or threaded portions. It is open all the way through, the only "flaw" to the body that I can see off-hand is at the top, where there the lip is much thicker on one side than the other (second picture). I've placed it next to a normal MKIIA1 for comparison purposes. Anyone seen this before?
View attachment 59638 View attachment 59639 View attachment 59640 View attachment 59641