A vein from the leg is removed and grafted to the coronary artery to bypass a blockage. Coronary artery bypass surgery during mobilization (freeing) of the right coronary artery from its surrounding tissue, adipose tissue (yellow). The tube visible at the bottom is the aortic cannula (returns blood from the HLM).
The average yearly income in 1930 was $1,368. With a 40 hour work  week that is an average of about 65 cents per hour.1368 per annum. Keep in mind two things: there were almost no taxes back then, and unimployment was high, so this is an average of the mostly white collar workforce.
Thus, between 1940 and 1950, the average annual wage more than doubled to $1,900. It tripled in the next two decades to $5,700 in 1970 and more than quadrupled in the next two to about $24,300 in 1990. Both men and women experienced such increases in their average annual wages during this period (Table 1).or the first time, the real average annual wage of men fell from $29,900 in 1980 to $29,800 in 1990. But, notwithstanding the large increase in the number of female wage-earners, the average annual wage of women increased by 14% to $17,900 in 1990.