The Seal of Neptune was a children's programme created by Oliver Postgate

Oliver Postgate

Oliver Postgate was an English animator, puppeteer and writer.He was the creator and writer of some of Britain's most popular children's television programmes...

 and Peter Firmin

Peter Firmin

Peter Arthur Firmin is an English artist and animator. He was the founder of Smallfilms, along with Oliver Postgate. Between them they created a number of popular children's TV programmes, The Saga of Noggin the Nog, Ivor the Engine, Clangers, Bagpuss and Pogles' Wood.-Early life:He trained at...

, also known for their works Ivor the Engine

Ivor the Engine

Ivor the Engine is a British children's animation by Oliver Postgate and Peter Firmin's Smallfilms company. It is a children's television series relating the adventures of a small green locomotive who lived in the "top left-hand corner of Wales" and worked for The Merioneth and Llantisilly Railway...

and Clangers

Clangers

Clangers is a popular British stop-motion animated children's television series of short stories about a family of mouse-like creatures who live on, and in, a small blue planet . They speak in whistles, and eat green soup supplied by the Soup Dragon...

. It was broadcast on ITV in 1963. Its plot featured the adventures of a seahorse and a shrimp and was similar in animation style to Ivor the Engine and Noggin the Nog.

In October 2010 it was reported that original film of the series had been recovered from a disused pig sty on a farm belonging to Firmin.