The Savona division had been in North Africa since the start of the war. It was brought forward to help defend Tripolitania after Operation COMPASS, and then placed in the border defense position during late summer 1941. There it stayed until it had to surrender to 2^nd South African Division on 17 January 1942, when it had run out of food and water. Its commander, General Fedele de Giorgis, was awarded the Ritterkreuz for the defense according to German records, but I have not been able to verify this. He survived the war and later became commander of the Corps of Carabinieri in Italy.

I would be interested in comments and corrections, and also further information on the coastal defense guns.
This order of battle is based on German records, and is likely to not be 100% accurate.

55^th Infantry Division Savona (A.S. 40 Type)

Divisional Command

Vehicle Company

Infantry Command

Three platoons 4.7cm anti-tank guns

1 platoon 2cm anti-aircraft machine guns

15^th Infantry Regiment

Staff

One 81mm mortar company (6 mortars)

Three battalions (2^nd battalion in Bardia)

Each battalion staff, three rifle companies with 12 light MGs each, and one support company with 18 4.5cm mortars and 8 anti-tank rifles.

16^th Infantry Regiment

As 15^th Regiment, 2^nd battalion also in Bardia.

Additionally one 6.5cm infantry gun company with 5 guns.

Armour

Light tank company with 13 L33 tanks (sunk on transport)

Artillery Command

12^th Artillery Regiment

1^st battalion (10cm howitzers) 1^st and 2^nd batteries (4/5 howitzers, respectively) sunk; 3^rd battery of 4 howitzers in Naples.

2^nd battalion (10.5cm guns), 3 batteries of four guns each 3^rd battery in Naples

3^rd battalion (7.5cm guns), 1^st battery 6 guns, 2^nd and 3^rd 4 guns.

8^th independent battery with 2 coastal defense guns of unknown calibre

27^th independent battery with 6 coastal defense guns of unknown calibre

503^rd and 504^th independent battery with 8 coastal defense guns each of unknown calibre

55^th Field Replacement Battalion with two companies (in Naples)

255^th anti-tank battalion with 8 3.7cm and 4 4.7cm anti-tank guns

Pioneer and Signals Troops

127^th Mixed Radio and Telephone Company

55^th Specialist Engineers

Further signals troops in Naples

Administration Services

27^th Bakery Detachment (motorised)

Motorised V.A. Detachment

Supply Columns

155^th Mixed Supply Column (motorised)

Medical Services

45^th Field Medical Detachment

Military Police

75^th Carabinieri Detachment (motorised)

Field Postal Service

55^th Field Postal Detachment (motorised)