Bamboo fly rod identification

[JMP]

I received a bamboo fly rod as a Father’s Day gift from my son on Sunday. He stated the individual he purchased it from stated is was a WW II bamboo rod. There are no identification features on the rod. It came in a spare gun barrel sleeve and has two tips. He was told one tip is for flies and the other is for bait.
Any insight on how I can identify the rod or determine its weight? I will try to obtain more information when he is here for Sunday dinner tomorrow.
Thank you