need help identifying a bayonet

[devilsrope]

Hi all a friend found this bayonet need some help identifying it. the blade is 16 3/4 long on one side of the blade is stamped F1 with 123 below it, next to that is what appears to be a crown and GB then 19_ _ under it and HAPM_ ? the other side of the blade three marks the only one I can make out for sure is an X, it has a leather and metal sheath any ideas??

[Ryan B]

Is it a lee einfield bayonet? Not the Spike version but the regular bayonet kind.
THanks
Ryan

[devilsrope]

I thought it was but I have never seen one with a blade that long it has me stumped Shawn

[Ryan B]

Also from looking at the slant of the last number in the date it seems too me that it is dated 1937.
Ryan

[zwerge]

It looks like a 1907 enfield bayonet,the scabbard has been modified to fit a US style web belt......1907 enfield bayonet markings - Google Search

[Ryan B]

Ahh i knew it was an enfield! Now as i look at it zwerge you are correct it looks to be 1907. Thanks for the clarification for us both.
Ryan

[devilsrope]

Thanks for the help guys thought I was on the rite track but was not sure