You might find them at gungrip.com
Of course the value of a Colt Det. Special w/ pearl grips will be dependant on several variables. The condition of the pistol is of course key, also which series Det. Special the gun is; 1st, 2nd, 3rd or 4th. Finally, the finish of the revolver will also affect the value. EXAMPLE: A 3rd series Colt Detective Special, in MINT condition, NIB (new in box), and with a Nickel finish -- $1,000 Blued finish $800.00.
Grips made out of mother of pearl.
100-1000 USD
100-300 USD or so
about 1914
No way to answer- there were dozens of different Luger variants. Value will depend on exact model and condition. Never saw a Luger with pearl grips- non-original grips reduce values. Could be anywhere from $200 to $2000.
300
10-400 usd
50-5000 USD or more depending on specifics.
Depends on if the grips are factory. Value range 100-400 USD
The cast of Pearl as a Detective - 1913 includes: Chester Barnett as Chester Pearl White as Pearl
You could call Colt Archives Services (800) 962-2658 ext. 1343 to find the history of your particular Colt DS .38. May cost some money. Chances are, if it wasn't a special order, it was an after- production acquisition.