Anyone recognize this delivery van from a Munsters episode background?

I don't recognize it, and don't have any guess...

Dave commented, "Looks to me like and English Thames pronounced "Tems". What do you think?"

You might be spot on Dave, I think you have it... but Chris looked it up on IMCDB.org and nailed it!
Chris commented;
1955-56 Dodge US. Mail truck, rare today, Body was by Fageol
This Dodge postal vehicle built with right hand drive and a flat-head six cylinder engine with a push-button automatic transmission. A decal inside, above the windshield, says: FAGEOL - Pony Express Twin Coach - Kent, Ohio, while a tag proclaims “Post Office #6-A-1101 - Model #C3 - C6 - 95.” A Dodge tag notes - 105 net Hp @ 3600rpm.” The wheelbase of the truck is 95 inches, and the rear door opens like a minivan hatch.
The Twin Coach Company utilized their body manufacturing facilities to produce these "Pony Express" vehicles.
From IMCDB.org

Hooniverse love

read about it: http://hooniverse.com/2010/08/27/so-much-awesomosity-from-a-dodge-caravan-2/#more-26589

A couple of cool photo techniques fron Vodoo Timm's tumbler

from http://voodootimm.tumblr.com

Cool images from Speed On Big Boy

Via: http://speedonbigboy.tumblr.com/

Penthouse Pets in Transit

Via: http://ohmygoditsthefunkyshit.tumblr.com

Get an eyeful of this Bedford!

Via: http://ohmygoditsthefunkyshit.tumblr.com/

Commentary on Jalopnik has most people noticing it is Maltese, and for more oddball custom busses in the same "Almost" american 50's style: http://justacarguy.blogspot.com/2010/01/isolation-in-remote-islands-keeps-old.html and the license plate matches a Maltese, confirming the commenters who instantly recognized that it was related to the Maltese busses, https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRLS5MsubHg_d2a457YlyEIhaab22zZ_haBdlQboP898UinUnOuhbCLQchkKJ-7Tc5OwVG8ExJ-g6UbDhMb_ZtMEnxIllctoZVwbd0DSH-050uR1akm3iR-sAbAjg4d953ZRR5O2DdN2U/s1600-h/Maltese%2520buses.jpg

For a seperate look at the busses and small trucks that look odd to me, get Google task bar (love it) to translate for you and read
http://www.zlomnik.pl/index.php/2010/07/10/na-malcie-autobusy-sa-wieczne

Old Chev business van

1961 Volkswagen double cab... very cool, rare, and has the optional canvas top

1977 - 78 Van Advertising, now THAT was a nation-wide short lived trend.

See also; http://justacarguy.blogspot.com/2009/05/1975-77-dodge-advertising-what-were_29.html

The Adult Toys from Dodge (1978 advertising campaign)

The "Adult Toys" were the Tradesman truck, the Warlock, the Street Van, and the Macho Power Wagon

See also: http://justacarguy.blogspot.com/2009/05/1975-77-dodge-advertising-what-were_29.html