i would say a couple hundred dollars
sounds like a pre-WW1 Springfield 1903 rifle bayonet
Sorry- but a bayonet for WHAT? You told us the year, but not what rifle it is meant for.
How long is the bayonet? If the blade is long, (14" +/-) it sounds like a very early year Springfield rifle bayonet. If it is 10" long, it may be a WWII cut down model. IF the former, $250.00 or more, if the latter, $125.00. Condition (good or bad) can change values by 50% or more.
Dates to 1908. Value depends on condition and how original it is. Range from 300 to multiple thousands.
its around $15-$20. There is no such thing as an M8A1 bayonet. The M8A1 is the designation of the scabbard that holds the M-4, M-5 (series), M-6, and M-7 bayonet.
Your inland made M-1 Carbine will sell for between 500-750 dollars,depemding on condition and a good bore.
very rare Canadians with no US mark ! 2500$
check with: trapdoorcollectors.com From Braveheart1954....also check GunBroker.com
No US $1 coins were struck in 1908, look at the coin again and post new question.
If uncut and with the scabbard, between $150.00 and $300.00, all depending on condition.
the top 'bayonet' appears to be ww2 Japanese rifle bayonet the bottom 'bayonet' appears to be an early US 1903 bayonet or british bayonet. message me with writting on bottom bayonet, on blade near top of hilt.........