At that time, I scanned a piece of school stationery (from xxx University), cut it into word and made it myself. Reason: Yes, a4 paper is much better than stationery.

Letter of recommendation, typed directly on a4 paper, with the teacher's seal on the letter and the teacher's signature and seal on the envelope seal. I think it's okay without stationery. I have a seal and a signature.

With stationery, there are disadvantages: the quality of paper is not good, and it is not easy to print (at least I feel troublesome. . . )。 So I didn't use school stationery.