Pattern 1919 Naval Pack

Hey guys,
Picked this up today, not sure what it is but it was very cheap so I took a shot. Anyone know what this is?

Hi Jeff, I checked Gordon's Equipment of the WWII Tommy but there is nothing in there that is exactly like this pack. However it has a strong similarity to the Double Ration Canister Carrier. (As to construction and overall structure.)

Thanks for the assist Bill, appreciate it!
This one had me stumped but Lee over at WAF has identified this pack for me. It seems my hunch paid off....

http://www.karkeeweb.com/patterns/1919/1919_haversacks_packs.html

http://www.karkeeweb.com/patterns/officers/w_e_o/1919/weo_1919_hsack.html

Its a pattern 1919 pack, whether naval or Officers I have to figure out yet.

Period picture in wear.

The funny thing is that the number stamped on the brass in the first photo is a Patent Registration Number issued between 1883 and 1887.....

http://www.phoenixmasonry.org/masonicmuseum/Dating_English_Registry_Marks.htm

Mike

Thanks for the link to that reference site, I hadn't seen that one before. Must have been an early patent for that piece.
Your comment made me pull the pack out again and inspect all the metal fittings and the strap ends are all marked ME Co 1924, I missed those in my initial inspection.