If you thought the U.S. Postal Service could be sluggish, you've probably never had to rely on the very leisurely British Post Office Limited, cuz look at this:

An undelivered postcard has finally reached its intended destination - about 121 years after it was first popped off in the post.

The Christmas-themed card was delivered to Swansea Building Society's Cradock Street branch last week even though it was originally sent in 1903 - so only just over a century too late.

Mail carriers taking their sweet time over there in Wales!

The card was addressed to a Miss Lydia Davies, who was 16 at the time and lived at the address 11 Cradock Street in Swansea. Here's how that address looks today:

I don't think Miss Davies lives there anymore — she was 16 when the letter was sent, which would put her at a ripe 137 years old today.

Still, officials are hoping to get the card delivered to someone:

Henry Darby, marketing and communications officer for Swansea Building Society, said he was sorting through the post when the postcard dropped out, and that he had found limited information about the intended recipient online.

'So we thought we'd pop it on our social media and thought maybe someone locally may be connected to her, a few generations down,' he said.

As to how the card finally ended up being delivered after more than a century, a spokesperson for Royal Mail said,

It is likely that this postcard was put back into our system rather than being lost in the post for over a century.

Though "being lost in the post for over a century" doesn't sound too far-fetched in the UK!

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