The markings indicate 250 rounds of Cal .30 in web belts for the M1919 series Browning MGs.  The actual mix would be four armor piercing cartridges then one tracer round, repeated for the entire 250 round belt. Van Balkenburgh's book, which lists repacked lot numbers, does not give specific years, but states (page 123) that the 900,000 series of lot numbers was repacked in 1946. Hope this helps.

Thanks. I thought that was a date. Here’s a couple more pics of the front, and just noticed a strip of red around the inside tip. I think I have a blank round here.

The fact that the framing was done in St Louis may just mean that he was a soldier stationed nearby at Jefferson Barracks, meaning that thousands and thousands of soldiers from Jeff Barracks likely had pics taken in St Louis. So very possible he was not “from” anywhere near there. Sorry.    If you can very carefully dismantle the frame perhaps a name was penciled on the back of the photo. Most often that is not the case in my experience but every now and again you get lucky.

294 North Fourth West Provo, UT. still stands.  Built in 1912.

World War One era photo.   Probably taken stateside.    You are correct- Army Reserve.  Also, he is an officer.  Artillery Lieutenant.   The possibility of IDing him is quite unlikely.   

DanOH, I sent you a direct message.

Have a look at this, to give you an idea of what would be involved, then compare it to a fairly recent combination cap. Ok, will it be a perfect reproduction? No, but it will be very close and far better than the utter junk that many many places seem to crap out onto the market at highly inflated prices.    http://www.usww2uniforms.com/USN_combination_cap.html

I just made for fun this set up. yes everything is original and i was careful but just wanted once make a nice display. I hope you enjoy.   Warmest  Regards Frederik-Jan.  

Both are WW2. The one with the yellow lettering was re-packed post WW2 and may have Been Armor Piercing Incendiary Tracer (?)

As far as I know, no one currently makes a good quality reproduction of the USN Combination cap. You might actually be able to get one made for you by Society Brand Hat Company however, I do believe he is currently very busy. You could try Aviator Military Headwear, they are over here in the UK. I had a very high quality crusher made by them a few weeks ago, and was very impressed with the service and the cap. Here is an option that might actually be worth looking into, and one I am looking to try out myself. Find a good quality Bancroft combination hat made in the last 20-30 years (easier and probably even cheaper for you to do in the US), replace the plastic frame with a wicker weaved type or even buckram fabric to build upon. Replace the modern bird with an easily obtainable original and you'd probably come out on top. The other covers though, I'm sure you'd be able to find originals about that are suitable.