This source has post-war: https://books.googleusercontent.com/books/content?req=AKW5QafmL5MliNYjRBhJ6p-QGFnopAzNzSGtqtNbeW2iuArMpglIAnOu0GOfwGT55LGO_-3-6L_saGTFjDTceyV9UT1gA6562hOo4__LX09Xe3LUes561KtxleonOU__5wX8f9bERUk5ib392QbouEx9W5Egww4XVKyND4Bnu2iACJgNDYoT4QCaXZ0v-WINJdRLNow-SnoviVOCcd0uBczuU9s_YBeZao5WLzqnvL5idFwD-xhR0Ggb4axjz2zktK3hxNVCL8CxaiQ8BHq4u4wr18_Wz5NfhRJMpmatG0aMjLMP4beXabk pg. 102

Nice to know, and thanks for the information.  The seller was asking $285 I believe.

Thank you for your help.   Who knows what happened to the gun.

Some great items, love the grenade.

Found another one! https://www.history.navy.mil/content/history/nhhc/our-collections/photography/us-people/l/luce-stephen-b/nh-48030.html   Stephen Bleecker Luce   Luce, Stephen B. Midshipman, 19 October, 1841. Passed Midshipman, 10 August, 1847. Master, 15 September, 1855. Lieutenant, 16 September, 1855. Lieutenant Commander, 16 July, 1862. Commander, 25 July, 1866. Captain, 28 December, 1872. Commodore, 25 November, 1881. Rear Admiral, 5 October, 1885. Retired List, 25 March, 1889.   Although the original source where I found the photo said Lt Commander, I think it more likely to be post-war.    

RemIning pictures 

See attached pictures

Time to use the chart.

Id agree with you on that Thorin, I think they are a very nice knife overall both in practicality and aesthetically. I know one of my distant relations must of thought the same, he sent one back to England from the US prior to ww1 then returned and carried it in the Mesopotamia Campaign, before heading back to the US and buying yet another....   I still use one for bushcraft every so often.

Patience really is key, sometimes you have to consciously stop actively looking for a certain item just to for the shiny item gods to take notice and materialise one in a place you least expect it.