You have not provided enough information to answer the question with any accuracy. First, condition is all important. Also, although ac44 is a Walther code, a subcontractor also marked ac44 on slides. Your serial number leaves open the possibility yours is a Mauser build example with a subcontractor slide.
Assuming you have an ordinary Walther example, that it has matching serial numbers, and its condition is excellent, its value, in my opinion, is in the neighborhood of $600 to $700. There may be some variation depending upon where you are from; I am in the Northeast US.
If you are interested in a more comprehensive answer, suggest you post your question with pictures on p38forum.com.
Best regards
Marc
250 or so
100-1000 depending on specifics.
$600-$900, depending on markings, accesories, magazine, holster, etc.
100-1000 USD depending on what "great" equates to in the buying/selling world, accessories, orginality of parts, etc..
Undetermined.What kind of gun is it? Lugar, Walther, or other rare type?Germany made many variations of guns. Some were made for officers that are plated or special grips or such that makes them more valuable.What condition? A WW2 gun can be almost like new with original blue finish (the black coating) and the other extreme of the scale are guns that were dug out of the ground.The Serial Number AC44 sounds like a Walther P-38 but I don't have a reference book for it.
The 365 V8 firing order is 1-8-4-3-6-5-7-2 This is the only engine in Series 60, 62, & 75 Cadillacs. This engine had 310 h.p. and 405 lb/ft torque. Compression ratio 10.5 to 1 Normal oil pressure 30-35 lbs. Spark plug & gap AC44 gapped at .035 Timing 5 degrees BTDC Idle Speed 480 RPMs A/C off 20 gallon fuel tank 6 quarts oil with filter change A/T 11.5 quarts
348--(250hp, 280hp, 305hp, 315hp, 320hp and a 335hp) Originally only a truck engine introduced in 1957 Cubic Inch=348 Bore=4.125 Stroke=3.25 Firing order=1-8-4-3-6-5-7-2 Engine Weight=640/650lbs Forged Crank=has round flywheel bolt flange Connecting rod length=6.135 inches Crankshaft mains=2.4977 Push rod length=exhaust 9.140, intake 8.772 Push rod diameter=5/16" (all) Fuel pump push rod length=5.75 inches Dipstick on Drivers side Ignition timing=4 degrees B.T.D.C. Spark plugs=AC44 (standard), AC45 (hotter), AC43 (colder) Spark plug gap=.035" Rocker arm ration=1.75:1 Internally balanced All 348's were assembled at the Tonowanda plant. 409--(340hp, 360hp, 400hp, 409hp, 425hp First year of production 1961 Cubic Inch=409 Bore=4.3125 Stroke=3.5 Firing order=1-8-4-3-6-5-7-2 Engine Weight=640/650lbs Forged Crank=has bell shaped flywheel bolt flange Connecting rod length=6.00 inches Connecting rod weight=25.025 ounces Crankshaft mains=2.4977 Push rod length=exhaust 9.140, intake 8.772 Fuel pump pushrod length=5.75 inches Dipstick on Passenger side Spark plugs=AC43N (standard), AC44N (hotter), AC42N (colder) Spark plug gap=.035" Rocker arm ratio=1.75:1 Internally balanced X on block starting mid year of '62 All 409's were assembled at the Tonowanda plant. Production of 409 equipped cars: 1961-142 1962-15,019 1963-16,902 1964-8,864 1965-2,828-(2,086 340hp/742 400hp) 43,755 409 engines were produced from 1961-1965. These totals do not include trucksThe 409 was a 348 bored .187 over. The 348 was 4.125 x 3.25. The 409 was 4.312 x 3.25