The anchor was seen as a symbol of strength as anchors hold down ships even in the stormiest of weather. It was also a popular symbol because of its close resemblance to the cross. Anchors were also used to mark safe houses for those seeking refuge from persecution.
While sheet sizes vary by brand and style, a fitted sheet is similar to its respective mattress in measurements; for instance, 78 inches wide and 80 inches long for a king mattress, compared to 72 inches wide, 84 inches long for a California king. The fitted sheet has a little extra width in the king-sized set.
California king sheets are sized to fit a California king mattress. Commonly found on the West Coast (hence the name), the California king is the longest standard mattress size. Standard king-size fitted sheets, therefore, are unlikely to fit a California king mattress. Other than the size, there are no differences in the sheets themselves in terms of materials or stitch-count.