Hi Chas !
This is the actual !!!

D.EftHemiou funnel

http://www.shipspotting.com/gallery/photo.php?lid=460973

Is there another ship of D. EftHemiou at Shipspotting to compare the funnel logo ???

If Parnon perished in 1954, she can never have an IMO number.

PARNON IMO - 6111605
Sorry

As the vessel looks like a vessel built around WW II I looked in to Mr. Schell's converted Naval vessels 1940-45
and foud as follows.
HMS ALISMA (Flower class corvette) Built 1941/2 by H & W, Belfast # 1096
49 LACONIA
50 CONSTANTINE S
52 PARNON D. EftHemiou, Piraeus
1954 July 16 Sprang a leak and sank, 16 July 1954, in 40.15N-13.20E, voy. Marseille - Eleusis, amonium sulphate

LR/IMO No: 111605 Year: 941
Name: ALISMA
Type: Patrol frigate
Flag: GBR Date of completion: 13.2.41
Tons: 940 Link: 1600
DWT: 1180 Yard No: 1096
Length overall: 62.6
LPP: 57.9 Country of build: GBR
Beam: 10.1 Builder: Harland & Wolff
Location of yard: elfast
[1949 cv to cargo ship, 724gt] - [1950 re-engined, 1D] - [O as PERTUISANE] - 49 LACONIA - 50 CONSTANTINE S. - 52 PARNON
foundered 40.15N/13.20E 16.7.54 [Marseilles-Eleusis, ammonium sulphate]

For a moment I thought Lothian might have been converted when she was used as a Sperrbrecher during WWI. However he she is post-war, so chances that she is the Parnon we are looking have dwindled to zero.
https://skipshistorie.net/Stavanger/STG105SigvalBergesen/Tekster/STG10519190200000%20ISFOND.htm

Positive Chas ...
In the original picture the name of the ship is clearly visible.

The port is possible to be Piraeus and the period of the photo 1955-1959.

Erm, the Lothian was built in 1902, sorry for the typo in my earlier post.
Chas, I fail to see the resemblence of the 1941 ship with this one, at least giving the shots of her that the Wrecksite is providing.
My suggestion is solely based on the Parnons I could find in Miramar in combination with the age of the picture. I ahve not looked for any other photograph of the ship.

Edson, don't think so, the Lothian was classified as a cargo ship.

Could this ship transported passengers ??

Perhaps the ex LOTHIAN, built in 2002, which traded as PARNON between 1921 and 1927. Torpedoed in 1943, she has no IMO number but Miramar has her history under number 1115651

None reference about this vessel as HMS ALISMA !!!

Blt as HMS ALISMA ??