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Karel Martens: Perpetual Birthday Calendar

Karel Martens: Perpetual Birthday Calendar - Main image
$33.28 $52 In stock

Category: Wms&Co.

Karel Martens conceived this A3 wall calendar as a prototype in 1968. The design has been unrealized until now — a limited edition publication from Roma Publications. The Perpetual Birthday Calendar is built on a single die-cut shape, repeated across colored card stock, layered until the pattern multiplies into something that couldn't have been predicted from the piece alone. Thirteen sheets, each a different color, each punched to the same geometry. What changes is what's underneath.

Perpetual because it isn't year-specific — designed to track birthdays, anniversaries, or any date worth remembering across years.

Karel Martens for Roma Publications. Made in the Netherlands.

Part of our Karel Martens collection.

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Customer Reviews (4.8 / 5 · 5 reviews)

Jason Y. ★★★★★

I hung this in the kitchen and now every family birthday gets written in pencil on the grid instead of lost in my phone. The A3 wall format is perfect for scanning a whole year at once, and the simple printed design hasn't aged a bit since 1968.

Miles Z. ★★★★★

Been hunting for a perpetual calendar that doesn't look like office supply store junk, and this A3 wall piece is it. The grid layout means I write each birthday in once and never buy a new calendar again. Heavy stock too, so it won't curl by February.

Aurora B. ★★★★★

Didn't realize this design was conceived back in 1968 and only now actually printed — that history makes it feel special hanging in my hallway. The grid leaves room to pencil in every family birthday, and the paper stock is heavier than I expected for something this size.