The Computer Line from Crown Mill is a more everyday option from their super high end luxury sets, however it is still far more luxurious than your run of the mill paper you see in office use today, and is made from 100gsm paper throughout.
Crown Mill Computer Line A4 135gsm Paper - Pack of 50 - Cream
Pack of 50 21 x 29,7cm A4 paper sheets of plain, lightly striated 135gsm luxury paper.