I just bought a delta elite for 800. i was told that de serial #s are old manufacture & ds are new manufacture. i do believe colt is making these again.
Colt Combat Elite (45ACP) $1000.00 Colt Delta Elite (10mm) $1000.00 (not out yet)
Look up Colt Delta Elite in Wikipedia. Sometime after it was designed in1987.
pull the trigger
Value depends on overall condition.
100-1000 uSD
No one but Colt knows and they aren't telling.
You did not provide a serial number.
Go to proofhouse.com for Colt combat commander serial numbers.
Walmart
50-700 usd
You will have to call Colt