Hercules Bicycle Serial Numbers
I can't tell from the pics if it's a pre-Raleigh(1960) or not but $150 seems awfully high. Don't worry; the experts should be here shortly. Bangladeshi magi free download.
Oldroads.com - VVVintage Vintage Bicycles Raleigh Serial Numbers. Hercules 1960 ===== Dating Your Raleigh 3-speed Bicycle If your. Does Hercules mean 1974 when the serial number is HC74? It should either be a 67 or 77 bicycle, as the first number is a 7.
In the meantime, check out the rear hub. There should be a date stamped on it. I believe the older ones had it right below the name or maybe to the left.
Bike Serial Number Lookup
I don't see the Sturmey-Archer gear shifter on the handlebars. Is there a little chain attached to the right side of the rear hub, possibly a cable attached to that and running along the frame? 
Can you read Nottingham anywhere on the frame or below the Hercules on the headbadge or seattube? If so, then it's a Raleigh and definitely not worth $150.
The bike is also missing the chainguard. Hercules A division of B.C.C. Until merged with Raleigh as part of the TI takeover in 1960, Hercules was a major competitor of Raleigh, with a strong sporting image. Program facut stampile. They sponsored popular racers, most partiuclarly Ken Joy and Eileen Sheridan.
Hercules Bicycle Serial Numbers
Hercules made their own 3-speed hubs, which were pretty-much identical to the older Sturmey-Archer AW. Hercules hubs continued to use threaded drivers long after Stumrmey-Archer abandoned them. Raleigh-built 'AMF-Hercules' models are fairly common. They were distributed by AMF (American Machine & Foundry.). Thanks for the help. It's tough finding info about Hercules bicycles on the web.