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.
The average annual wage of men increased by 42%, from $18,500 in 1960 to $26,200 in 1970, and that of women increased by 36% from $10,000 to $13,700. The overall increase in the average wage in this decade (37%) was lower, however, than in the previous decade (43%).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.