Spiriform Perpetual Calendar Stainless Steel Tumbler

$32.00

This unique 20 oz (600 ml) black stainless steel tumbler, measuring 3.11″ × 8.42″ (7.9 cm × 21.4 cm), features an original design of a perpetual calendar for the modern era, starting in 1582 and extending for centuries into the future.
The charts display all the days of your life, and generations before and after you. 
Here is an ideal gift for historians, teachers, students, and business people for reviewing the past and long-term planning the future.

More details

  • Hand-wash only
  • High-grade stainless steel tumbler
  • Great for hot or cold liquids
  • Straw and lid included with the tumbler
  • 20 oz (600 ml)
  • Tumbler size: 3.11″ × 8.42″ (7.9 cm × 21.4 cm)

Size & Fit

  • 20 oz (600 ml)
  • Tumbler size: 3.11″ × 8.42″ (7.9 cm × 21.4 cm)

Quality Guarantee & Returns

  • Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
  • Because the products are made to order, we do not accept general returns or sizing-related returns.