https://locus-and-line.com/ daily https://locus-and-line.com/products/date-curve-poster-one-date 2026-11-13T16:19:14+01:00 daily https://cdn.shopify.com/s/files/1/1083/5358/5486/files/date-curve-poster-one-date-1.png?v=1790411656 Personalized Date Poster, Birthday & Anniversary Math Curve Art Personalized Date Poster, Birthday & Anniversary Math Curve Art: spirograph curve in Paper colors, titled "Ana & Luis"; September 20, 1983. https://locus-and-line.com/products/date-curve-poster-two-dates 2026-11-13T16:19:14+01:00 daily https://cdn.shopify.com/s/files/1/1083/5358/5486/files/date-curve-poster-two-dates-1.png?v=1790411660 Couple Date Poster, Personalized Anniversary Math Curve Art Couple Date Poster, Personalized Anniversary Math Curve Art: Lissajous curves in Night and gold colors, labelled Ana and Luis; April 22, 1985 and November 3, 1983. https://locus-and-line.com/products/date-curve-poster-three-dates 2026-11-13T16:19:14+01:00 daily https://cdn.shopify.com/s/files/1/1083/5358/5486/files/date-curve-poster-three-dates-1.png?v=1790411664 Family Date Poster, Personalized Birthday Math Curve Art Family Date Poster, Personalized Birthday Math Curve Art: spirograph curves in Paper colors, labelled Ana, Our wedding and Luis; April 22, 1985, June 16, 2012 and November 3, 1983.