A hand-written flashcard reading 弹钢琴(“play piano”), in which the second stroke in 钢 is 捺(nà) instead of 橫/横
In colloquial written form, the first horizontal stroke (橫/横) in “钅” is commonly written as a descending stroke (捺(nà)). This form is reminiscent of the descending stroke (捺(nà)) in “釒/钅” and “金(jīn)”.