There’s a real appetite here on the internet for old black and white photos being presented in colour, but in the main they tend to focus on historic or social themes. It’s less common to see sports photography undergoing this treatment, which is why we were so struck by the work of Gooner Frog when we came across it on Facebook.

It turns out that Gooner Frog is actually Alex le Duc, a 29-year-old English teacher from Brittany, France, who in March this year started adding colour to photos of his beloved Arsenal.

“I thought my knowledge of the club’s history was not good enough. The Arsenal have a history they can be proud of. I could have gone through lines and lines of history blogs (that I enjoy) but I decided to start having a look at pictures pre 1970s.

“Obviously there were in black and white. I stumbled upon a 1936 picture of fans going to an away game with a good old school locomotive. I saw the smiles on their faces – it seemed like happy times – yet the black and white made it all look all grim (at least to my mind.) I thought it’d be fun to give it some colours and make it look like it really was.

“I trained a bit on a simple 1947 picture of Don Roper; I posted it on Twitter and it got a good reception. People found it curious, and some told me I should do some more, which I did.”