The Details:
Are as described in the two photos below.

The bombs are from the Tamiya M21 Mortar Motor Carriage kit with hand painted markings.

The alignment stripe decals on the tube are Aeromaster Decals, and were applied over a gloss coat Futura Floor Wax. Once the decals were in place, I set them into position with Solvaset setting solution and allowed them to dry over night. My final step to applying decals is to add a light over coat of Futura Floor Wax to seal the decals.

The Figures:
The figures are from DML and are two of the four figures found in their "U.S. Army Airborne (Operation Varsity, 1945)" figure set, Kit No. 6148. Basic assembly was straight forward with the detail being up to the usual DML standards. Both figures used here are a combination of the four figures provided with modified hand positions cut to fit with the 'action' of this subject. Weapons and other accessories are included with this kit, and the extra details added are described in the accompanying photos:

The uniform unit patches (17th Airborne Division) are from Archer Fine Transfers and were pressed into place with a toothpick using the dry transfer method of application. Archer does give you the option of applying either wet or dry, but in either case, they are just superbly printed transfers.

The US flag and uniform rankings are from Quartermaster's Depot. They are wet transfers, and are also superbly printed. The "US" equipment markings are wet transfers from Hudson & Allen. I thought that those would be a little tedious to apply, but they worked out nicely and I do highly recommend them. They add a nice touch of detail that is not normally seen on 1/35th scale figures. Solvaset decal setting solution was applied over all transfers to force them to form to any contours underneath. There were no problems encountered with the setting solution being applied over either wet or dry transfers. A final coat of Futura Floor Wax was then applied for the final 'sealing'.

The Base and Groundwork:
The base is cut from 3/4 inch thick pine, stained with an oil based Dark Walnut stain and then sealed with three thin coats of Polyurethane Gloss.

Painting, Weathering and Finishing:
All painting was done with acrylic paints from Tamiya, PollyScale and Model Master, with the exception of a little Testors enamel used for the flesh undertones.

Once all of the painting and weathering is complete and dry, I then apply Polly Scale acrylic Flat Coat to remove any sheens from the oil paints and Future Floor Wax, as well as to seal the off this subject from the 'elements'.

General Info:
The T27 was developed to provide U.S. Airborne Forces with a lightweight indirect fire support weapon with the destructive capabilities of the 81mm bomb. Production of the T27 commenced in 1944, and subsequent testing was to prove that the weight and bulk of this weapon along with it's associated ammunitions, combined with ineffective ranging capabilities, determined that this weapon could not be deployed effectively within normal airborne operations. Eventually, this project was cancelled and production of the T27 Mortar with the T21 Mount terminated after 2,000 units were produced.

(As of this writing, I am not certain if the T27 was ever tested or deployed under combat conditions in Europe during the later stages of World War II therefore, the showing of this model with figures representing the 17th Airborne Division, which was in fact deployed to Europe in late 1944, could very well be fictitious.)

Sources:

Mr. Jerrill F. Janik - United States
Mr. Gordon Rottman - United States

References:
    "British and American Infantry Weapons of World War 2" by A. J. Barker.

On the Internet:

M1 Carbine

M1 Carbine discussion group

M1C Airborne Helmet